FeiYu Tech FY-90Q User Manual

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GuiLin FeiYu Electronic Technology Co., Ltd http://www.feiyudz.cn E-mail: [email protected]

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Only the vibration damping pad is enough when the vibration is not so big.
The supplied Damper Mount will take care of most aircraft vibrations, unless it is (the vibration)

too severe.

WARNING:

VIBRATION CHECK

Even with the shock absorbing mount, your Quad may not meet the damping requirements of the AFSS.
To confirm correct vibration damping, please follow this procedure:
A. After connecting all wires between the Receiver, FY-90Q and ESC, install the unit as

recommended (ensure correct orientation – arrow pointing forward).

B. Activate the 4 Quad motors. DO NOT TAKE OFF.
C. Observe the state of the blue LED light on the FY-90Q.
D. If the blue light remains OFF, this indicates the vibration dampening requirements have been met.
E. If the blue LED lights up ON solid, then the vibration dampening is not enough. You will need to

add additional dampening support or change the installation location.

CONNECTION TO RECEIVER AND ESCs

FY-90Q INSTALLATION: ORIENTATION, POSITION & LEVEL

A. The FY-90Q has an arrow printed on the top of it. Orient the arrow towards the front of the Quad

(i.e. direction of flight).

B. When installing, please keep the FY-90Q horizontal and as close as possible to the "

Centre of

gravity

" (CG) of the aircraft.

C. The control benchmark of the FY-90Q is its horizontal position. Therefore, ensure the FY-90Q is in

the horizontal position when installed on your Quad.

D. If there is deviation between the FY-90Q horizontal position and the Quad‟s level flight, the off

balanced axis will cause the quad to drift as shown below. You may use your transmitter trims for
fine-tuning and restore balance.

FLIGHT LAYOUT

The FY90Q allows you to choose two types of Flight Layout:
A. Cross Type Quad Layout
B. X-Type Quad Layout

Note rotor direction of motors.

A. CROSS-TYPE QUAD LAYOUT

Orientate the FY90Q so that the arrow points directly at Motor NO. 1.

b) The characteristic of „Cross-Type‟ layout is easier flight controls and faster response to your

flight commands.

B. X-TYPE QUAD LAYOUT

For X-Type Quad Layout, install the mixing jumper as shown here:

b) Orientate the FY90Q so that the arrow points between Motor No. 1 and No 4.

PRE-FLIGHT CHECK AND SENSITIVITY ADJUSTMENTS

STEP 1 - Radio Transmitter Settings

a) Select the Model for Traditional Airplane or Glider, where there is not mixing for the throttle,

elevator, aileron or rudder.

b) For transmitters with helicopter settings only, choose mCCPM model setup where throttle, pitch,

elevator, aileron and rudder are not mixed.

For a start, we recommend you use your Transmitter EXPO to reduce control responsiveness by 50
percent for Aileron and Elevator.

d) If the throttle responsiveness is too high, use EXPO to reduce this too.
e)

For rudder, we recommend no EXPO setting (keep at normal).

STEP 2 – Matching ESC End Points

a) Only use ESCs that you can manually set the throttle endpoints. All endpoints MUST be manually

matched.

b) To manually match your ESC endpoints, refer to your ESC Manual.
c)

As a general guild to ESC end point matching, carry out the following:



Install the FY90Q, 4 x ESCs and 4 x motors as directed in this manual.



For added safety, remove all four propellers.



Ensure you have set your radio as STEP 1 (above).



Activated your radio and push the throttle stick to maximum (ensure your Throttle endpoints is
+100% or more).



Power up the quad, therefore activating your RC Receiver, FY90Q and ESCs.



All four ESCs should give out the signal of detecting the maximum throttle level.



Push down your throttle.



All four ESCs should give out the signal of detecting the minimum throttle level.



If your ESC do not show detection of the Maximum and Minimum throttle levels, please check
with your ESC manual on the correct procedure.



If this procedure is successful, proceed with the next steps.

STEP 3 – Rotor rotation.

Please check and confirm the rotation of the motors is correct for ESC 1, ESC 2, ESC 3 and ESC 4. If the
rotation is incorrect, just swap two of out the 3 ESC wires to the motor.

STEP 4 - Check Sensitivity Dials



Check the three FY-90Q sensitivity dials. Never adjust the sensitivity to zero as you will not have
any stabilization for your Quad and flight will be impossible.



As a general rule of thumb, agood stabilization sensitivity is having the three dials on the FY-90Q
placed in the middle, as shown below.

STEP 5 – Confirm control movements not reversed

For your first flight, do no fly high. Increase throttle to the point your quad just begins to float. Check
your rudder control, elevator (pitch) and aileron (Roll) controls are accurate. If the controls are reversed,
adjust (reverse) the settings on your RC Transmitter.

STEP 6 – First Hover



After checking Step 1 to 5, you may try to hover. Observe the flight character. If the stability is too
low (too much drifting or unpredictable flight) you may increase the 3 sensitivity dials.



If there is wobbling, the sensitivity is too high. Decrease the sensitivity accordingly.

STEP 7 – Fine Tuning

Adjust the 3 dials sensitivity as you fly your Quad to the point you are happy with its flying
characteristics.

WARNING: SAFETY PRECAUTION – MUST READ

The purpose of the FY-90Q (AFSS) is to stabilize the Quad aircraft.

II.

The FY-90Q is for your enjoyment. Do not fly the Quad into a crowded area, where your
aircraft can cause serious injury if crashed. Please be responsible when using this product.

III.

Besides the regular pre-flight checks (we recommend a checklist).

IV.

Any electronic hardware on an RC aircraft can fail over time. Please assess your aircraft and
electronics condition before use. We are not responsible for any losses as a consequence of
using this product.

Please ask an experienced RC Quad pilot for assistance if you are a beginner. It is absolutely
critical that you get flight basics before proceeding. You also need directions to correctly
assemble, take off and control your Quad Model.

VI.

Never fly close to people, buildings, wires, vehicles, trees or closed spaces. You could
seriously injure someone.

VII.

Minimum flying distance should be 20 feet from yourself or others. Learn about emergency
procedures should you lose control of your aircraft.

VIII.

Keep the Quad Model and the related equipment away from children. Quadcopters are not
toys. Children must be supervised at all times if they are allowed to fly.

IX.

Please operate your Quad within the permitted area of your local government. For more details,
please check with your local council or government.

If you are not using 2.4 GHz spread spectrum radio, never turn on your radio before checking
and re-checking that you're the only one using the frequency. You could cause a crash of
another aircraft if the frequency is the same. For security; please obey to the local frequency
regulation.

XI.

Never use the remote control within three miles of your local airport. You could endanger full
scale aircraft instruments.

XII.

Keep all electrical equipment away from rain water, moisture and extreme high temperature.

----END---

Note: We reserve the right to change this manual at any time! And the newest
edition will be shown on our website www.feiyudz.cn.

Cross-Type Quad Layout:

= ESC 1

= ESC 2

= ESC 3

= ESC 4

cw = clock wise
ccw = counter clockwise

X-Type Quad Layout: